Grigorovich M-23bis
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The Grigorovich M-23bis was a Soviet biplane flying boat built during the 1920s.
| Grigorovich M-23bis | |
|---|---|
| General information | |
| Type | Biplane flying boat |
| National origin | USSR |
| Manufacturer | Grigorovich Design Bureau |
| Designer | |
| Primary user | Soviet Naval Aviation |
| Number built | 1 |
| History | |
| First flight | Failed to fly |
| Developed from | Grigorovich M-9 |
Design
Dmitri Grigorovich developed the M-23 as a derivative of the Grigorovich M-9 with a more powerful engine. The first M-23 design was abandoned after the Russian Revolution and was transformed into an improved design, the M-23bis, in 1922. The aircraft was completed at GAZ-3 "Krasnyj Letchik" (The Red Pilot) in mid-Summer 1923, but the unsuccessful hull shape meant that it failed to take off. The M-23bis was sent back for modifications, but in late 1923, was destroyed by a flood at the Krestovsky Island hangar.[1]
Specifications (M-23bis)
Data from Aircraft of the Soviet Union : the encyclopaedia of Soviet aircraft since 1917,[2] Russian Aviation Museum : M-23[3]
General characteristics
- Crew: 2
- Length: 8.7 m (28 ft 7 in)
- Wingspan: 12.5 m (41 ft 0 in)
- Wing area: 45.8 m2 (493 sq ft)
- Empty weight: 1,165 kg (2,568 lb)
- Gross weight: 1,615 kg (3,560 lb)
- Powerplant: 1 × Fiat A.12 6-cylinder water-cooled in-line piston engine, 210 kW (280 hp)
- Propellers: 2-bladed fixed-pitch pusher propeller
Performance
- Maximum speed: 165 km/h (103 mph, 89 kn) estimated
- Wing loading: 35 kg/m2 (7.2 lb/sq ft)